<!--
 * @Author: your name
 * @Date: 2021-08-15 16:25:09
 * @LastEditTime: 2021-08-15 17:07:58
 * @LastEditors: Please set LastEditors
 * @Description: head标签中使用css
 * @FilePath: \第一周\day02\7-html_css.html
-->
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>html-css2</title>
    <style>
        #one {
            background-color: lightcoral;
            color: #fff;
            width: 300px;
            margin-bottom: 1em;   
        }   
    </style>
</head>
<body>
    <div id="one">Hello World!</div>
    <div id="two">你好，世界！</div>
</body>
</html>